Computing-machine.



F. M. CARROLL. VCOMPUTING MACHINE.

APPLIOATION FILED JULY 15. 1910.

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COMPUTING MACHINE.

APPLIQATION FILED JULY 15, 1910.

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P.. M. CARROLL. COMPUTING MACHINE.

APPLICATION FILED JULY 15, 1910.

Patented May 26, 1914.

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Illlll. IIIIIL P. M. CARROLL.- OOMPUT-ING MACHINE. ,APPLICATION FILEDJULY 15, 1910.

Patented May 26, 1914.

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`UNITED STATES PATENT onnion.

FRED MEBQHANT'CARROLL, 0F NEW HAVEN, CONNECTICUT, ASSIGNOR, BY MESNEASSIGNMENTS, TO CHARLES L. STURTEVANT, TRUSTEE, OF WASHINGTON, DIS-TRICT 0F COLUMBIA.

Specification of Letters Patent.

Application led July 15, 1910. Serial N o. 572,072.

COMPUTING-MACHINE.

Patented May 26, 191,4.

'sponding to the respective classes of the original items. 4 R

The items set up on the manually actu- -Aated part of the machine I termoriginal items, and the items set up on the other part of the machine Iterm secondary items.

It further has for its object' to produce a machine in which theoriginal items will be added together and the secondary items will beadded together. y M

It further lhas for its object-to .produce a machine that. will printboth the original items and the secondary items thus added, the originalitems in one eolu'mn and the corresponding secondiiry ite-ms in-anothercolumn.

It further has for its object to produce a machine which will print thetotal of the` original items and the total of the secondary items.

The machine is particularlyuseful in making records of the amounts andfees of money orders and similar double records, and one of. theembodiments hereinafter described will automatically record the fee ofAany domestic money order whenever the amount of that money orderisrecorded and also add together the amountsof the several money ordersrecorded and the several fees for such money orders. It will also printthe amounts and corresponding fees separately, and when desired. willprint the separate ,totals of the recorded money ordersl and thecorresponding fees. Thus. vwhen any amount between 1 and 2.50 inclusiveis recordedon -the operating part. of the machine. 3 will be registeredin the fee recording part of the machine. When any amount operatingpart., 5 will be registered by the fee recording part of the machine.When any amount between 5.01 and 10.00 is recorded on the operatingpart, 8 will 'be registered by the fee recording part of the machine.`When any amount between 10.01 and 20.00 is recorded on the operatingpart, 10 will be registered by the fee recording part of the machine.Then any amount bebetween and 5.00'iS recorded on the tween 20.01 and30.00 is recorded on the operatmg part, 12 will also be recorded. For

amounts from 30.01 to 40.00, 15 will also be recorded. For 40.01 to50.00, 1S will also be recorded. For.50.01 to 60.00,-20 will alsoberecorded. For 60.01 to 75.00, 25 will also be recorded, and from 75.01to 100.00, 3() will also be recorded.

The Several groups of original items above specified constitute aplurality ofI classes, and each class contains a plurality of itelns,there being a separate secondary item for each class or group.

The invention may also be embodied with suitable changes in machines forrecording any desired fee for any' of several classes made up of othernumbers than the numbers above specified. Where the classes begin `withthe even hundreds and end 'with 99,

9.99 or 99.99, the embodiment of the invention is 'much more simple thanwhere the classes conform to the requirements of the present `moneyorder systems.

For the sake of ai'ording a clear understanding of 'my invention, I havechosen to describe and illustrate it in connection with mechanism oftheWell know-n Burroughs.

addingl machine. (see Burroughs Patents Nos. 504,963, 505,078, ofSeptember 12, 1.893; McCauley Patent No. 823,474 of June 12, 1906;) towhich my invention lmay be applied without material alteration of manyof the o'ld parts thereof, but it willl be understood that myimprovement is not limited in its application to'this particular typeofmachine but that it mayl be embodiedfin connection with other machines.

The following is a. description of an embodiment of my invention,reference being had to the accompanying drawings, in which Figure 1showsa'side elevation, cert-ain shows another sectional detailofuniversal switch mechanism of Fig. 3 on the line z-a of said figure.Fig. 8 is a plan view of the resetting bars. Fig. 9 is a diagram ofcircuits for fees and original items grouped as in the present UnitedStates postal money order schedule.v Fig. 10 is a modified diagram ofcircuits for a different grouping of original items and correspondingsecondary items.

Referring more -particularly to the drawings, I make use of'keys orstops in seven of the vnine rows 'of the Burroughs keyboard. (See Figs.,9 and 10.) In the right-hand roWI utilize the keys 2, 3, 5 and 8 in thenext row I utilize the keys 1, 2 and 3. In the left-hand row I utilizethe key 1 and in each ofthe four rows im- Amediately to the rightthereof I utilize the full series l to 9 inclusive.

Each key or stop 221 (Figs. 1, 2 and 3) actuates a lever 217, whichmoves the slide 214 of its series backward so as to aetuate a detent 415suiiiciently to release the rack 610 of its series. The levers 217, withthe eX- ception of those which belong to the stops corresponding to thedigit 9, have connected to them catches 270, which determine how farthel rack bars 610 shalll fall. These rack bars are each carried'by oneof a series of levers 611 pivoted on the shaft 600 and carrying at itsrear end type members 618, which are forced against a suitable platen599 by hammers 715.

Y- clockwise.

There is one slide 214 and one rack 610 for each series of keys 221'inthe machine, and an accumulating wheel 916 lfor each rack, so arrangedthat they accumulate the items set up, carrying from one to the neXtadjacent. The accumulating wheels when the racks fall are out ofengagement therewith by reason of the movement of the trip 821, whichactuates the oscillating member 913, so as to move the throwing member914 as the shaft 800 (Fig. 2) turns vcounter- When the shaft 800returns, thereby moving in the other direction, the rocking member 913is moved in the opposite direction and the accumulative wheels 916-arebrought into engagement with the racks' 610.l (At this time the racksare in depressed position, andas they are being returned to theiroriginal position by the yoke 613, the accumulating wheels 916 arerevolved a distance corresponding to the values of the keys which werepressed torelease the racks.

The slides 214 are held in their rearward the shaft 300, and in thismovement, the tail piece 622 follows it, so that the cam member 623drops dowpbelow the pin 262. When the rack 311 returns to its normalposition, it forces the cam member 623 upward so that its cam surfaceengages the pin 262 moving it toward the rear of the machine and therebymoving the universal bar 202 toward the front of the machine, causing itto act upon the levers 228 so as to release the slides 214 at the end ofevery cycle of the machine, whereupon the slides and stops 221 return tonormal position.

Pivoted to the rack member 311 is a connecting barl 366 connectedto theupper end of an arm 110 pivoted upon the shaft 100. This arm 110 carriesa cross-rod 101, to which is connected aforked member 119 bearing aspring 880, which is connected to a pin 851 carried by` alever 811pivoted at .800, the pin 851 sliding in the fork of the member 119. Inthis way a movement of the shaft 300 isconveyed to the shaft 800, thespring 880 aetino to permit movement of the shaft 300 without moving thesha-ft 800 in case the `parts become blocked for any reason, therebypreventing shock. The spring 180 connected to the shaft 101 and to thebase of the machine returns the shaft and also the shaft 300 to theirnormal positions. The items are not only accumulated upon the wheels 916but are printed upon a paper carried by the platenI 599 on account of`the type members 618 being struck by the hammers 715 after they havebeen placed in proper position.

In order to print the totals, the total key 265 (Fig. 1) is depressed,moving the lever 227 and the bar 226 with its rod 226EL so as to releaseall the catches 415. Thereupon as soon as the cycle begins and the yoke613 drops, the shifter 914, which has been moved downward because of themovement of the bar 911 connecting it with the lever 227 does not drawthe wheels 916 out of engagement with the racks 610, but leaves them inengagement therewith, with the result that the downward movement of theracks 610 determined by the movement of the connection with myinvention,

'- tivelyof the AYother row.

about two cores,

.` ergized, its core. moves v and over` stops one of the plungers-beingl other ends are connected wheels 916 necessary to restore thosewheels to zero position. 'The type members 618l 'those racks arerestored to position, so that the machine is ready for anotheroperation, the wheels 916 being left in zero position. In order to makeuse of thisy machine in `I place plungers 1000 (Fig. 1) over the stops2, 3, 5, and 8 in the right hand series L( l, (C 2 77 and (C 3 7 ofseries adjacent thereto. These plungersare mounted in a. suitable frameand are surrounded by springs 1001 which normally tend to depress theplungers. When any 1000 is depressed, the stop 221 corresponding to itis depressed -by it. These plungers 1000 are suitably mounted inbearings which permit them to slide vertically and have at their upperends heads 1002 having lateral projections. A jacent to each .of theseplungers I mount a lever mally held by a spring 1004 beneath theprojection of the head 1002. On the outer ends of these levers rest thecores 1005 of solenoids 1006. The levers corresponding to the stops 3,5, and 8 have extended heads 1007, so that cores of two or moreactuat-ing solenoids may act upon said levers. In the ca se of the 5stop, there are three such cores with their correspondof the solenoids1006* being located above the others and "its core ycorrespondinglyextended. The downward extensions from the solenoid cores are reduced indiameter and are of non-magnetic material, preferably brass. In thesecond row of stops, the stops 2 and 3 have plnngers located above them,controlled by similar levers, which levers are controlled byelectro-magnets similar to those ofthe stops 3 and 2respec (See Figs. 0and 10.) The .`1 stop in the second row, however, is cont-rolled by thefour solenoids.

111g solenoids,- one compactness, these four solenoids are wound cach ofwhich cores bears upon the extended head of the controlling lever. When'the lcvers1003 are beneath the projections 1002, the stops are cocked,as I term it, and when any solenoid. is cnits lever 1003 so that longercocked, but is its 4plunger 1000 is no free to more under the..Yinfluence of its.

spring 1001 so as to depress its stop 221. In order to re-eock the,plungers 1000, I providel two bars 1008 (Figs. 1, S.' 0 and 10) mountedon ends of levers 1008. whose. by a bar 1010 so that the bars 1008 arealways maintained 1003, the upper end of which is norparallel to a`given line. These bars 1008 have pins .1009 which project beneath thelateral projections of the heads 1002 of the plnngers 1000. The bars1008 are nor`` mally depressed. 'When, however, they are raised, theyelevate all plungers which have been released or uncooked and restorethem to normalposition, at which time the levers 1003 can come beneaththe projections 1002 so as to hold the plungers cocked.

In order to eleva-te the bars 1008, I mount upon the shaft 501 (Fig. 1)a bent lever 1011, to which is connected a rod 1012 which rod isconnected to the bars 1008., When the cross-rod 101 is moved toward therear by the turning of the arm 110, the latter part of which motionwhich takes place well along in Jthe cycle of the machine, it moves thelever 1011 so as to elevate the rod 1012, which in turn elevates thebars 1008. The cross-rod 101 then moves toward the front, releasing theleve-r 1011 and permitting it to resume its normal position.

`The solenoids controlling the stops in the two right-hand series arelin circuits controlled by switches actuated by stops in the left-handseries A', '13', C', D", E' (Figs- 9 and 10) as hereafter explained,which are dominated by a normally o en master switch F. (Figs. 1, 9 and10. The stop-controlled switches complete selected circuits through oneor more of the solenoids-'1006 except for the break at the master switchF. This break is momentarily closed at the beginning of each cycle sothat when the machine starts 'a cycle to record an original item, the4circuits through one or more of the solenoids 1006 are at once fullycompleted and the corresponding plunger or plungers 1000 released. Themaster switch F and means for operating the same is .shown in Fig. '1and consists of two cups 1050 conneet-ed .respectively to two circuitterminals and an inverted .U-shaped member 1051 carried by a rod 1052.This rod fis connected to a bell crank lever 1053- movably mounted onthe shaft 501 and normally held in raised position by a spring 1054. Tothe lower end of the bell crank lever a. pawl 1055 is pivoted, whichengages afprojection 1056 on the forked member 119 of the machine. Inthe path of this pawl is a pin 1057 secured to a. stationary portion ofthe frame of the machineso as to be engaged by an incline on 4 cocked atthe end of the cycle after the original and secondary items have beenrecorded. n

The series of stops A', B', C", D' and F/ are the stops on which theoriginal items are set up. The stops of the third and fourth seriesofthe completeBurroughs keyboard are not shown in Figs. 9 and 10, since,in the embodiment being described, they perform no function. Stop 1 inthe lefthand series E' is the only7 stop of that series shown since theother stopsof t-hat series also perform no function.

For each series of stops A', B', C', D' and E', I provide universalswitch mechanism, such switch mechanism being shown in Fig. V9L at A, B,C, D and E. The universal switch mechanism C is shown in detail in iFigs. 3, 6 and 7. vThe universal switch mechanisms are all similar, withthe exception of the various circuit making devices which they actuate.They each consist of a bar 1013 carried by the ends of levers 1014,whose corresponding arms are of the same length and -whose free ends areconnected by a bar 1015 so that the bar 1013 as it moves.

is always parallel with a given line. To the bar 1013 a rod 1016isconnected by the salne rivet that connects the lever 1014, the lowerend being connected to a bell .crank lever 1017 pivoted at 101.8 to oneside of a vertical plate 210. On the other side of the plate 210 thedetent 228 is pivoted for retaining the slide 214 when the same hasbeenmoved into its rearward position by the depression of any one of theactuating stops 221. Cn this slide 214 I provide a projection 1019 whichengages lt-he lower end of the lever 1017, and, when the slide 214 ismoved into its rearward position, actuates that lever so so as to causethe bar 1016 to raise the bar 1013 and hold it in raised position aslong as the slide 214 is retained in its rear position. The hundreds bar1013 (series C) is provided with two circuit making devices 1020, eachsuch as shown in detail in Fig. 7. These ytwo circuitmaking devicestogether with the corresponding stationary contacts, are represented inFig. 9 by the third and fourth switchespf the universal switch mechanismC and vconsist of two mercury cups -1022 electrically connectedtogether, into which dip the ends of two curved circuit terminals 1023carried by insulating supports 1024. When ever the bar 1013 is indepressed position, the terminals 1023 are electrically disconnected andwhenever the bar 1013 is in raised position the terminals 1023 areelectrically connected They are, therefore, normally l disconnected.

The hundreds bar 1013 (series C) also carries two circuit controllingdevices. 1025,

which, together with ythe cooperating stay tionary contacts, arerepresented in Fig. 9 by the iirst and second switches of the universalswitch'mechanism C. Fig. 6 shows a detail of one of these controllingdevices, the same consisting of an inverted U-shaped member 1026, whoselower ends dip into mercury cups 1027 carried by'suitable insulatingsupports 1024. When the bar 1013 is depressed, the mercury cups 1027 areelectrically connected by the member 1026 and when the bar 1013 israised, the mercury cups are electrically disconnected, the result beingthat the circuit through this switching device is normally closed.

Surrounding the stops of the seriesA', B', C', D' and E' is aninsulating support 1028, (Figs. 2 and 3) for mercury cups 1029 and pins1030 (Figs. 4 and 5), with which U-shaped members 1031 and cups 1032respectively engage and disengage under differing conditions. The 1, 2,3, 4 keys of seriesl C' Fig. 3, are each provided with one U-shapedmember 1031, which coacts with corresponding cups y'1029. The 6, 7, 8and 9 keys are each provided with one such member 1031, adapted toengage with cups 1029 and also with one pair'of cups 1032 normallyengaging contaots 1030. The key 5 vis provided with three such invertedU-shaped members 1031, which co-act with three separate pairs of mercurycups 1029 and is also provided with one pair of electrically connectedmercury cups 1032 into which. dip terminals 1030 carried by the support1028, as shown in Fig. 5. The mercury cups 1032 although. connected withone another are insulated from the key. The U-shaped members 1031 arealso insulated.

The circuitcontrolling devices on the universal switch A (Fig. 9) aredifferent in number and arrangement from those of switch C, Fig. 3,above described. Counting from the bottom, the first, third, fourth andseventh controlling devices are like those shown in Fig. 6. Countingfrom the bottom, the second, fifth, sixth, eighth and ninth circuitcontrolling devices are similar to that of Fig. 7.

In the universal switch B (Fig. 9) corresponding to the series of keysB', the construction and mode of operation is the same as that shown inFig. 3, with the exception of the number and arrangement of thecontrolling devices.A In this universal switch B', counting from thebottom, the tirst,second, and fifth circuit controllers are of thenormally closed circuited type,I shown in Fig. 6. The third, fourth,sixth and seventhare of the normally open circuited type shown in Fig 7.

I n the universal switch mechanism C (Fig. 9) as above described, thefirst and second swltohes are of the normally closed switch, such 6, isillustrated in the lowest switch type shown in Fig. 6 and the third andfourth are of the normally open type shown in Fig. 7.

In the universal switch D (Fig. 9) corresponding to the series D', whencounting from the bottom, the first and third switches are of thenormally closed type shown in Fig. 6, and the second and fourth switchesare of the normally open type shown in Fig. 7. 'lhe switch of theuniversal mechanism E is of the normally closed type of Fig. 6.

Referring to the manually actuated keys, the keys of series A', whichcorrespond to the unit keys, have no switches except the universalswitch actuated by its slide 214 when any of the unit keys aredepressed. The keys of the series B', (Fig. 9) the tens keys, are someof them provided with switches and some of them without switches, thusthe tens keys 1, 2, 3, 4 have no switches, but each of them actuates theuniversal switch mechanism B. The tens keys 5, 6, 7, 8 and 9 have eachone switch of the normally open type of Fig. 4 and one switchof thenormally closed type of Fig. 5, and also actuate the universal mechanismB. The switches of the hundreds keys have already been described indetail. The switches of the thousands keys (Fig. 9) are the mostcomplicated. Each of the thou- 1, (C 2,7, C( 3,7, (C 4:, (C 5,77 and 6have two switches of the normally open type, Fig. 4. Key- 7 has fiveswitches. Counting from the bottom its Iirst, second, third and ifthswitches are of the normally open type of Fig. 4, and its fourth switchis of the normally closed type of Fig. 5. The thousands keys 8 and 9have each one switch of the normally open type of 'Fie'. 4. lTheten-thousands key 1, series E', (Fig. 9) has one switch of the normallyopen type of Fig. 4.

As a matter yof symbols in showing the switches of the two types, the'symbol shown in the key of series E' indicates in all instances (whetherin connection with the u'niversal switch mechanism [Fig 7 'j or inconnecti n with the key switches [F ig. 4]) a switc of the normally opencircuit type. The symbol is' not intended to represent the construction,but is simply a symbol. The symbol for the normally closed c1rcu1t asshown in either Fig. 5 or in Fig. of key 5 in the tens series B' andthis symbol is used to indicate such a switch in both the key switchesand the universal switches and is not intended to represent theconstruction ofthe switches. The symbols are shown below the structuresin Figs. 4,r

5, 6v and 7.

Having described the apparatus and its mechanical operation, I will nowdescribe the electrical connections and the circuits mechanism A, wlnchisI formed by actuating any of said keys for setting up original temscorresponding to the money order schedule and in so doing refer to Fig.9. `In this Fig. 9, G is any convenient source of current. A, B, C, D,1*) as above stated, are series of universal switches, that is, switcheswhich are actuated whenever any key of the corresponding denomination,units, tens, hundreds, thousands, lten thousands is actuated. A', B',C', D', E' are series of keys for the respective denominations, units,tens, hundreds, thousands, ten-thousands. Whenever a unit or a tens keyis actuated and the thousands and ten thousands keys are not actuated, acircuit is completed through the conductor 50 and the actuated units,tens or hundreds switch connected thereto to the third switch (normallyclosed) of series D and thence through the lower switch (normallyyclosed) of series C to conductor 3, which is connected to the solenoid'31 of the right-hand registering key 3 and through that sole- Ynoid tothe return wire R, and this is the only path which `is thus completed.When key 1 of the hundreds series is actuated, the circuit isl the sameto the switch of that key. From thence it passes through the switch ofhundreds key 1 to the conductor 3, the path through the lower switch(normally closed) of series C being at that time interrupted. When thehundreds key 2 is operated and any key of a value lower than the tenskey 5, the circuit to the hundreds key 2 is the salne but at that pointpasses through the normally open but now closed switch of the hundredskey 2; from thence it passes through the lower normally closed switch ofthe tens key 5 and the normally closed switches of the tens keys 6, 7,8, 9 to the conductor 32, and thence to the .second solenoid 32 of ,theright-hand registering key 3 and tothe return conductor R. When thehundreds key 2, the tens key 5 and no units key are actuated, thecircuit is the same to the hundreds key 2, thence it passes through thenormally open but now closed switch of the hundreds key 2 to the upper(normally open) switch of the tens key 5 to the first, z'. c., lowest.,switch of the universal mechanism A and thence to conductor 32 and thesolenoid 32 of the right-hand registering key 3 to the return R. Fromthis it will be seen that whenever any numeral between 1 and 250inclusive is set up, the plunger of the righthand registering `key 3 isreleased and that plunfrer only.

` lVhen the hundreds key 2 and the `tens key 5 `and one of the unitsk'eyshare actuated, the circuit is the same with the exception thatinstead of passinglthrough the lower switch of the universal mechanismA, it passes through the second, i. c., next to 5 and to the return R.When the hundreds key 2 and any one of the tens keys 6, 7, 8, 9,together with or with out a unit key, are actuated, the circuit to thehundreds key 2 is the same. It then passes through the switch of key 2,the right-hand switch of whichever of the tens keys 6, 7, 8, 9, wasactuated, to the middle actuating solenoid 52 of the registering key-5and to the return conductor R. Whenever either of the hundreds keys 3 or4 is actuated, `either together with or without a tens or units key, thecircuit to the hundreds key 2 is the same. It cannot pass through thelowest (normally closed) switch of the universal switch C because thatis .now open.. It therefore passes through the switch ofthe hundreds key3 or hundreds key 4, according to' which has been actuated to the middlesolenoid 52 of the registering key 5 and thence to the return conductorR. When the hundreds keyv 5 alone is actuated, the circuit to thehundreds 4key 2 is the same but instead of passing through the switchesof the hundreds keys 2, 3 or 4, it passes through the second switch ofthe hundreds key 5 and thence tothe fifth switch of the universal seriesB and the seventh switch of the universal series A, these switches beingnormally closed, to the middle solenoid 52 of the registering key 5 andthence to the return. From this it will be' seen that any number between251 and 500 inclusive when set up, will result in actuating theregistering key 5 and no other key. When the hundreds key 5 and any tensor units key is actuated, thecircuit to the hundreds ke 5 is the same asjust outlined, passing tlirough the second switch of the hundreds key 5,from thence, however, it passes through either the fourth switch of theuniversal series B or the sixth switch of the universal series A, orboth, according to whether a tens key or units key or both was actuated,to the lower solenoid 81 of the registering'key 8 and thence to Y thereturn.

When either hundredskey 6 7 8 or 9 is actuated, either together with orwithout a tens or units key, the lcircuit is Q, the same past thehundreds keys 2 3 4 thence it passes through the conductor 42, thence itpasses through the first switch of the thousands universal switch(normally closed) to Vthe eonductor'43. From thence it passes throughone of the switches of the hundreds keys 6 7, 8 9 according to the onewhich has been actuated, through the conductor 44. It then through thefourth switch of the thousands key 7 (normally closed) to the lowerpasses solenoid"81 of the registering key 8'and I thence to the returnR. 7

When only the thousands key 1 is actuated, the circuit instead ofpassing through the conductor 50 as heretofore, passes through theconductor 60, the universal switches in the series A, B and` Ccontrolling 8 to the lower solenoid 81 of the registering key 8 andthence to the return R. From fthis Vit will be seen that when any numberis vset up'between 501 and 1000 inclusive, the registering key 8 will beactuated and no other key and the amount 8 recorded.

When the thousands ke 1 is actuated, together with any keys o the units,tens or hundreds series, the circuit instead of passing through theconductor 60 passes through the conductor 70, and through such of theunits, tens or hundreds universal switches in that circuit which mayhave been closed, to and through the u per switch of the universalseries D, thence 1t asses to .the upper switch of the thousands ey 1from thence it passes to the conductor 10, throughone of the windings,11 of the double wound right-hand solenoid of the registering key 1 tothe return R. When the thousands key 2 alone is actuated,

the circuit passes through the conductor 60 to the lower switcrh of thethousands ley 2, through which it passes to the conductor 10 and to thesame winding 11 of the right-hand solenoid of the registering key 1 tothe return R. From this it will be seenthat whenever anynumber between1001 :ind 2000 is set up, the registering key 1 will be'actuated 'andthat key alone. This key being in the tens position will register theamount 10. f

When the thousands key lower denominations are actuated, the currentpasses through theconductor and the switches controlling the same, asabove described, to the upper switchv of the thousands key 2, fromthence it passes to the conductor 12, to which one winding 12 of theleft-hand double-wound solenoid controlling the registering key 1 andthe solenoid 21 controlling the right-hand registering key 2, areconnected in-parallel. The circuit therefore leads through these twowindings in parallel to the return R.- When the thousands registeringkey 3 alone is actuated, 25

2""'and keys ofv Y 2001and of the double-wound key 2 just referred to.From this it will be seen that whenever any number between 3000inclusive is set up, the key 1 and the right-hand key 2 will be actuatedso as to register 12 lVhen the thousands key 3 is actuated, togetherwith any keys of lower denominations, the circuit passes through theconductor and the universal switches controlling the same to the upperswitch ofthe thousands key conductor 15 to which the other winding 13right-hand solenoid of registering key 1 and the winding of the lower`solenoid 51 ofregistering key 5, are connected in parallel and to thereturn R. The circuit, therefore, passes through these two magnets tothe return, so that the amount 15 is set up.l Then the thousands key 4alone is actuated, the circuit passes through the conductor 60 to thelower switch of the key 4 and thence to the conductor 15 and through thewindings 1 3 and 51 connected in multiple thereto, so as to set up theamount 15 From this it will be seen that whenever any number between3001 and' 4000 inclusive is set up, the amount 15 will be set up on theregistering keys.

lVhen the thousands key 4 and any keys of lower' denominations areactuated, the circuit passes through'the conductor 70 to thc upperswitch of the thousands key 4 and thence to the conductor 18, to whichthe other winding 14 of the lefthand double-wound `solenoid of recordingkey 1 and the upper solenoid 82 of recording key 8 are connected inmultiple and to the return conductor R. When the thousands key 5 aloneis. actuated, the current passes through the conductor 60 to the lowerswitch of the thousands key 5 and to the conductor 18 to which windings14 and 82 of the recording, keys 1 and 8 are connected in multiple, asjust described. Vhen therefore any number between 4001 and 5000inclusive is set up, the recording keys will be actuated to record thealnount 18 W hen the thousands key 5 and any keys of lower denominationsare actuated, the current passes through the conductor 7() and theuniversal switches controlling the same to the upper switch of thethousands key 5 from thence it passes to the conductor 20, fi'ornwhichit passes to the upper solenoid 212 of the left-hand registering key 27and to the return R. lVhen the thousands key i 6 alone is actuated, thecurrent passes through the conductor 60 to the second switch of thevthousands key 6 which it passes to the conductor 20, which, as juststated, leads to the solenoid 212 of the left-hand key 2. When,therefore, any number between 5001 and 6000 inclusive is set up, theleft-hand recording key 2 3 from thence it passes to the from will bereleased and the amount 20 will be set up.

When the thousands key 6, together with keys of lower denominations areactuated, the current passes through the conductor 70 and the universalswitches con-l trolling the same to the lower switch of the thousandskey 6, from thence it passes to the conductor 25, to .which the windinof the lower solenoid 210 of the left-han recording -key 2 and thewinding of the upper solenoid 53 of the recording key 5 are connected inmultiple and to the return. When any number ybetween 6001 and 6999 isset up, the current will pass through the windings just referred to andthe amount 25 will be recorded.

When the thousands' key 7 alone is actuated, the current flows throughthe conductor to the second switch of the thousands key 7 thence to theupper switches (normally closed) of hundreds keys,9, 8, 7 and the lowestswitch of hundreds key 6 to the lowest switch of the hundreds key 5(normally closed) and thence to the conductor 25, which, windings lofthe recording keys to set up the amount 25 This circuit' is the samewhenever the thousands key 7 and any one of the units or tens keys orthe hundreds keys 1,, 2, 3, 4 are actuated. When the thousands key 7 andthe hundreds key 5 alone are actuated, the circuit lows through theconductor 80 to and through the second switch of the thousands key 7through the normally closed switches of hundreds keys 6, 7, 8 and 9 thethird switch of the hundreds key 5, through the lower universal switchof series B and the third universal switch of series A to theconductor25 and the windings 210 and 53 before referred to. From this itwill be seen that ,whenever a number between 6001 and 7 500inclusive isset up the recording keys will register 25 Whenever the thousands key 7the hundreds key 5 and any key of lower'denomination are actuated, thecurrent passes through the conductor 70 to an through the third switchof the thousands key 7 to the conductor `43, thence it passes throughthe lower switch of the thousands key 7 to one or both of the uppermostuniversal switches of series A or B, thence back to the upper switch ofhundreds key 5 to oonductor 44, thence through the upper switch ofthousands key 7 to the conductor 30, thence it passes the winding of thesolenoid 301 of the left-hand recording key 3 and to the return R. Whenthe thousands key 7 and any one Aof the hundreds keys 6 7 8, or 9,either with or without one of the units or tens keys, are actuated, thecircuit passes through the conductor 70 to the third switch of thethousands key as just described, energizes` to the conductor 43, thencethrough one of the switches of the hundreds keys 6 7, 8. or 9, to theconductor 44, thence throughr t-he upper switch of the -thousands key 7to the conductor 30 and thence to the winding of the solenoid 301l ofthe left-hand recording key 3.

When the ten-thousands key l is actuated, the circuit l'passes throughthe conductor 80 to the switch. of the ten-thousands key .1 and thenceto the conductor 30, from which it passes, as before described, throughthe winding of the solenoid 301 controlling the left-hand recording key3 to the return R. From the foregoing it will be seen that whenever anynumber between 7501 and 10,000 inclusive is set up, the recording keyswilll be actuated to register the amount 30.

In the modiied arrangement of circuits shown in the diagram of llFig.10, provision is made for setting up the original and secyondary itemsas follows: Secondary 3 when original 1 to 299 inclusive are set up,secondary 5 when original 300 to 499 inclusive are set up, secondary 8when original 500 to 999 inclusive are set up, secondary 10 whenoriginal -1000 to 1999 inclusive are set up, secondary 12 when original2000 to 2999 inclusive are set up, secondary 15 when origi- ,nal 3000Vto 3999 inclusive are set up, secondary 18 when original 4000 to 4999inclusive are Set up, secondary 20 when original 5000 to 5999 inclusiveare set up, secondary 25 when original 6000 to 7999 inclusive are setup, secondary 30 when original 8000 to 10000 inclusive are set up.

Because the groups beginwith even hundreds instead of ending with evenhundreds, as in the money order schedule, the number of circuits andswitches is greatly reduced. In this diagram, a b c d e representuniversa1.switch mechanisms, each actuated by any keyzr'of thecorresponding series a c e.v When no key is actuated to set up anoriginal item, the circuith from the source (Jr is. open. If a tensorhundreds key is' ac tuated, thenormally open contacts ofthe u'nlvlesal switches a and b are closed'establishi i g a circuit through theconductors 50a 4and the normally closed contacts of the universalswitchesd' and e in series therewith thro-ugh the lower (normallyclosed) contacts of the universal switch c to the conductor 3a, whichleads to 4 the solenoid 31a of the right-hand secondary key 3 and to theret-urn R. When the hundreds keys 1 I or 2 are actuated either with orwithout a tens or units ke f, the circuit before referred is interrupted.at the lower (normally closed) contahts of the hundreds universalswitch c, but the current after Cpassing through the lower (normallyclose con tact`s1-;of the universal switch e is free to pass throughIone of the vswitches of the hundreds keys l or 2 according to which wasactuated, to the conductor 3, through which it passes through the magnet31a, to the return R. It will be seen from the foregoing that wheneverany original item between 1 and 299 inclusive, is set up,

set up the secondary key 5 will be actuated i to set up the secondaryitem 5. In a similar manner, when any of the hundreds keys 5,

l6, 7, 8 or 9, either with or without tens and units keys, are actuated,the current after passing the lower normally closed contacts of theuniversal switches d and e passes through the switch of` the actuatedkey to the conductor 8a, and thence to the solenoid 82a controlling thesecondary key 8, and to the return, so that when any original itembetween 500 and 999 is set up, the secondary item 8 is set up.

Whenany thousands key is actuated, the universal switch d is actuated soas to interruptthe circuit through the ,conductor 50a. When any of thethousands keys 1 to 7 inclusive are actuated, a circuit is completedthrough the actuated switch and the conductor 60a, the upper contacts ofthe universal switch e being normally closed. When the thousands .-key`1 is actuated, either with or without a units, tens or hundreds key, thecircuit passes from the conductor 60u Ito the switch of thousands key land conductor 10;t to the winding 111 of the right-hand solenoid of thesecondary key 1, so that whenever any number between 1000 and 1999 issetup, the secondary item 10 will be recorded, the recording key 1 being'in the' tens position. When the thousands keyA 2 is actuated, eitherwith or without keys of lower denomination, a circuit is establishedthrough the conductor 60a, theswitch of thousands key 2, conductor 12a,windings 112a and 21, connected in parallel to the return R, so thatwhenever any original item between 2000 and 2999 is set up, thesecondary item 12 will be set up on the secondary keys. Y When t-hethousands key 3 is actuated, a circuit is completedthrough'the-:conductor 60a, the switch of thousands key 3, conductorJl5, solenoid windings 113a and 51%, connected in multiple to the returnR, so

lating the stops of that whenever Vany original item between 3000 and3999 is set up, the secondary item 15 will be set up.

Whenever the thousands key 4 Vis actuated, either'with or without keysof lower denominations, the circuit through the conductor 60 iscompleted through the switch of the thousands key 4 and the conductor18, to the winding 114 of the left-hand solenoid of the secondary key 1and the wind- .lower solenoid 201 of the left-hand secondary key 2, tothe return, so that Whenever any original item between 5000 and 5999 isset up, the secondary item 20 will also be set up.

Whenever either of the thousands keys 6 or 7 is actuated, a circuit iscompleted through the conductor G0 and the switch of the key actuated,to the conductor 25, thence through the winding of the upper solenoid212 of the left-hand secondary key 2 and the winding of the uppersolenoid 53 of the key 5, to the return, so that whenever any originaliteln 'between 0000 and 7999 is set up, the secondary item 25 will alsobe set up.

Whenever either the thousands keys or 9 is actuated, a circuit may beestablished through the conductor 80 instead of 60 as heretofore,although this is not necessary. In the diagram, whenever either of thethousands keys 8 'or 9 is actuated, a circuit is established through theconductor 80 and the switch ofthe particular key actuvated, to theconductor 30, and thence passes through thesolenoid winding 301 of theleft-hand secondary key 3. When the tenthousands ke l is actuated, acircuit is established tlrough the conductor 80 and the switch of theactuated key, to the conductor 30 and thencethrough the solenoid 301aforesaid. From this it will be seen that Whenever any original itembetween 8000 and 10000 inclusive, is set up, that the secondary item 30will also be set up.

The operation of the machine is as follows: Original items are set up bymanipuseries A B C D E (Fig. 9) in the usual lmanner in which theBurroughs machine is ordinarily used. The setting up of an original itemon these keys completes a circuit through one or more solenoids 1006with the exception of the break at the switch F as heretofore describedat The shaft 300 is then turned by the length.

This rehandle in the ordinary manner.

sults in movingv the member 119, which,

moves the bell crank 1053 until the pawl 1055 is released from theprojection 1056 by the pin 1057.V During this movement of the bellcrank, thecontact 1051 engages the mercury in the cups 1050, tlms fullycompleting the circuit above referred to. The corresponding plungers1000 are thereby released so as to actuate the corresponding recordingstops at the very beginning of the cycle. The machine then prints andaccumulates as in the ordinary operation, and when the totalizing key265 is used, prints the totals. As soon as the plungers 1000 arereleased, the circuit at l." is broken and remains broken until the nextcycle. Toward lthe end of the' first half of the cycle, the cross-bar101 vengages the lever 1011, lifting the rod 1012 and the parallel bars1008. This lifts the released plungers 1000 until the levers 1003 passbeneath the projections 1002.50 that theplungers are re-cocked and readyfor further use. Upon the completion o'f the cycle, the machine is thusready to have another original item set up and to record them, 'togetherwith corresponding secondary items. One

portion ofthe accumulating wheels 910 is used for the original itemssecondary items, there being no conflict until the fees amount to onehundred dollars, so that it is not necessary, under ordinary cn'-cumstances, to remove-the carrying mechanism to prevent carrying fromthe fourth to the fifth accuniulating wheel. The left-hand part of themachine used ,for original items is practically a mechanism independentof the right-hand part and vice versa, except for the electricalintercommunieation and the'single driving crank, certain ,other partsbeing used in'common instead of being duplicated.

The invention permits of various modifications without departing fromthe spirit thereof as will be evidentto those skilled in the art.

1. In a computing machine, the combination of a. group of main stops, agroup of secondary stops, electro-magnetic means for eontrolllng one ofsald secondary stops, clrand others for the controlling a given one 'ofsaid secondary stops will be connected between said circuit terminalswhen a plurality of main s tops of different denominations are actuated.

3. In a computing machine, the combination of a group of main stops anda group of secondary stops, the main stops being of differentdenominations, electro-magnetic means for controlling said secondarystops, circuit terminals, a source of current therefor, switchesactuated by said main stops whereby the electro-'magnetic meanscontrolling a given one of said secondary stops will be connectedbetween said circuit terminals when a plurality of main stops ofdifferent denominations are actuated, an additional group "of mainstops, and dominating electric switches controlled by said additionalgroup of main stops whereby, whenever one of said additional group ofmain stops is actuated, the electro-magnetic means controllinga-dilferent secondary stop will be connected between said circuitterminals.

4. In a computing machine, the combinat-ion of a group of secondarystops comprising stops of different denominations, a roup of main stops,electro-magnetic means for actuating two secondary stops of differ-y entdenominations, circuit terminals, a

' source of current therefor, and switches controlled by each stop ofsaid group of main stops completing electric connection with saidterminals whereby the electro-magnetic means of two secondary stops ofdilferent denominations will be connected between said terminalswhenever any one stop of said main group is actuated.

5. In a computing machine, the combination of secondary stops ofdifferent denominations, a group of main stops, electro-magnetic meanscontrolling the same, circuit ter- Cil minals, a source of currenttherefor, nor- `mally open switches and normally closed switchescontrolled by each 'stop of said main group of stops whereby, whensaidmain stops are actuated, the electroemagnetic means controlling agiven secondary stop will be selected and connected between saidterminals. y

6. In a computing machine, the combination of a group of secondarystops, a group of main stops, electro-magnetic means controlling saidseconolary stops, circuit terminals separated so as to constitute anormally openY circuit for said electro-magnet-ic rmeans, a source ofcurrent therefor, selective switches controlled by Said main stops forselecting a given electro-magnetic meansand connecting it between saidterminals when any ofs'aid main stops are actuated, and means forclosing the circuit at said terminals temporarilyduring the cycle oft-he machine.

7 In a computing machine, the combina- 65 tion of a group of secondarystops, a group of main stops, circuit terminals, a source of currenttherefor, and a plurality of switches controlled by each stop of saidmain group, making and breaking electric connections 70 whereby a givenelectro-magnetic means is electrically connected between said circuitterminals whenever one stop of the main group of stops is actuated.

8. In a computing machine, the combina-75 t-ion of a group of secondarystops, a group of main stops, a plurality of electro-magnetic meanscontrolling said secondary stops respectively, circuit terminals, asource of current therefor, selective switches comprising a plurality ofswitches controlled by each stop' of said main group making and breakingelectric4 connections, and individual switches actuated by theindividual stops of said main group, whereby a given one of saidelectro-magnetic means is selected and electrically connected betweensaid circuit terminals whenever one of the main group of stops isactuated.

9. In a computing machine, the combination of a group of secondary stopsof differentdenominations, a group of main stops, circuit terminals, asource of current therefor; ``lectromagnetic means controlling aplurality of secondary stops of different denominations, selectiveswitches comprising universal switches controlled by a plurality of saidmain stops and individual switches controlled by said main stopsseverally, whereby the electro-magnetic means controlling a plurality ofsecondary stops of different denominations are connected between thecircuit terminals when any stop of said main group of stops is actuated.

10. In a computing machine, the combination of a group of secondarystops, a plu- -rality of groups of main stops, main terminals, a sourceof current therefor, electromagnetic means controlling one of saidsecondary stops, additional electro-magnetic means controlling anotherof said secondary stops, switches controlled by any stop of one maingroup for connecting one electro-magnetic means between said mainterminals of the circuit, and switches controlled by any stop of theother main group of stops for breaking said connection and establishingan electric connection of the electro-magnetic means of the othersecondary stop between said main terminals.

11. In a computing machine, the combination of a group of main stops, agroup of secondary stops, electro-magnetic means for controlling one ofsaid secondary stops, circuit terminals, a source of currenttherefor,125 switches controlled by said main stops whereby, when'any stop ofsaid main stops is actuated, the electro-magnetic means of stops,circuit terminals, a source of current therefor, switches actuated bysaid main stops whereby the electro-ma etic means controlling a givenone of sa1d secondary stops will be connected between said circuitterminals when a plurality of main stops of vdifferent denominations areactuated, and

means for temporarily connecting the source of current between saidcircuit terminals at the beginning of a cycle of the. machine.

13. In a computing machine, the combination of a group of main stops anda group of secondary stops, the main stops being of dii'erentdenominations, electro-magnetic means for controlling one of saidsecondary stops, circuit terminals, a source of current therefor,switches actuated by said main stops whereby the` electro-magnetic meanscontrolling a given one of said secondary stops will be connectedbetween said circuitl terminals when a plurality of main stops ofdifferent denominations are actuated, an additional group of main stops,dominating electric switches controlled by said additional grou of mainstops whereby when- .ever one o -said additional group of main stops isactuated, the electro-magnetic means controlling a different secondarystop will be connected between said circuit terminals, and means fortemporarily connecting the source of current between said main terminalsat the beginning of a cycle of the machine.

14. In a computing machine, the combination of a group of main stops, agroup of secondaryD stops, springs for moving said secondary stops,triggers restraining said, secondary stops, electro-magnetic means for lreleasing said triggers, a source of current for said electro-magneticmeans, circuit terminals, and means controlled by said main stops forconnectingsaid electro-magnetic means between said terminals.

15. In a computing machine, the combination of a group of main stops, agroup of secondary stops, springs for moving said secondary stops,triggers restraining said secondary stops, electro-magnetic meansforreleasing said triggers, a source of current for saide1ectro-magnetic means, circuit terminals, means controlled by said mainstops l for connecting said electro-magnetic means secondary stops,triggers restraining said secondary stops, electro-magnetic means forreleasing said triggers, a source of current for said electro-magneticmeans, circuit terminals, and means controlled by said main stops forconnecting said electro-magnetic vmeans between said terminals, andcycle performing means for temporarily connecting said source of currentbetween said terminals and for restoring said secondary stops to initialposition after the source of current has been disconnected from betweensaid terminals.

17. In al machine of the character described, the combination of aplurality of groups of manually operated main type controlling stops, anequal number of secondary type controlling stops each corresponding toone group of main stops and controlling connections between all stops ofany grou ary stop.

18. In a machine of the character described, the combination of a typesetting stop, a Spring normally tending to actuate the same, a detentrestraining said spring and electromagnetic means for releasing saiddetent.

19. In. a machine of the character described, a plurality of branchelectric 'circuits, a main circuit to which said branch circuits areconnected in multiple,'manual switches 1n the branch circuits and a mamswitch in the main circuit, cycle performing` means for closing saidmain switch and means for locking said manual switches during theperformance of a cycle.

20. The combination with an adding machine comprising sections forrecording amounts in separate columns, said sections comprisind printingmembers, and the usual stops and eys for controlling said members, ofsupplemental stops for one section, electro-magnets for operating saidsupplemental stops, circuits including the co1ls of saidelectro-magnets, and means operated by keys of another section forclosing said circuits.

FRED MERCHANT CARROLL.

Witnesses: v

L. S. JAMES, RALPH C. POWELL. f

